I'm user of mp3tag for some years now, & something bugs me when managing tags using extended tag panel. I use "Del" key to remove the value but occasionally I press "Del" key over wrong tag fields & then have to cancel the panel & do what I done all over again.
I could be useful to have a button to change the value to with a keyboard stroke like "Insert"
& would save me hours of my time redoing or manually typing the value. It could be named as restore to default or revert or what so ever...
I actually wanted the tag panel to show every value the selected mp3 files have like the menu tag fields. but that button is just enough for me.
The proposal offers a good suggestion, but needs some more detailed view.
I am speaking now about the dialog "Extended Tags..."
Once a single-value tag-field name is selected for deletion, using the [Del] key, it will be marked with the label for later physical deletion after pressing [OK].
Once a multi-value tag-field name is selected for deletion using the [Del] key, this single item will be removed from the list of tag-field names.
Only when all multi-value items are manually removed, then the remaining 'root' tag-field name will be marked with the label .
It would be handy when a key combination like [Shift]+[Del] can undo the last [Del] processed step and restore the situation as it was before, independently for each tag-field name respectively for each multi-value tag-field sibling.
Thus an user can immediately correct the last entry error and must not start all over again.